678866120

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{263}}^1\times {\mathrm{1373}}^1$

素因数の和:1694

約数の個数: 64

約数和(自身を含む): 1567019520

約数和(自身を除く): 888153400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 263, 376, 470, 526, 940, 1052, 1315, 1373, 1880, 2104, 2630, 2746, 5260, 5492, 6865, 10520, 10984, 12361, 13730, 24722, 27460, 49444, 54920, 61805, 64531, 98888, 123610, 129062, 247220, 258124, 322655, 361099, 494440, 516248, 645310, 722198, 1290620, 1444396, 1805495, 2581240, 2888792, 3610990, 7221980, 14443960, 16971653, 33943306, 67886612, 84858265, 135773224, 169716530, 339433060, 678866120]

約数ペア:

[(1, 678866120), (2, 339433060), (4, 169716530), (5, 135773224), (8, 84858265), (10, 67886612), (20, 33943306), (40, 16971653), (47, 14443960), (94, 7221980), (188, 3610990), (235, 2888792), (263, 2581240), (376, 1805495), (470, 1444396), (526, 1290620), (940, 722198), (1052, 645310), (1315, 516248), (1373, 494440), (1880, 361099), (2104, 322655), (2630, 258124), (2746, 247220), (5260, 129062), (5492, 123610), (6865, 98888), (10520, 64531), (10984, 61805), (12361, 54920), (13730, 49444), (24722, 27460)]